Siemens 3RT20271AK600UA0 Contactor
Panel mounting — S0 size, 120VAC coil
This S0-frame device mounts to 35mm DIN rail or chassis; the 120VAC control coil drives a 3PST-NO main pole section with integral 1NO+1NC auxiliary contact block. Operate time is 40ms; must-pull-in threshold is 96VAC. The coil draws 81VA during energisation.
Key specifications (3RT20271AK600UA0)
| Parameter | Value |
|---|---|
| Base part | 3RT2027 |
| Main contacts | 3PST-NO (3 Form A) |
| Contact rating | 32 A AC-3 |
| Coil voltage | 120 VAC |
| Coil power | 81 VA |
| Must operate | 96 VAC |
| Auxiliary | 1 NO + 1 NC |
| Mounting | Chassis / DIN Rail |
| Operate time | 40 ms |
| Operating temp | 25°C – 60°C |
| Package | Bulk |
Family and MPN variants
The base 3RT2027 series covers multiple coil voltages and auxiliary configurations. Key distinctions in the available alternates:
| MPN | Coil voltage | Contact rating | Auxiliary | Package |
|---|---|---|---|---|
| 3RT20271AK600UA0 (seed) | 120VAC | 32A | 1NO/1NC | Bulk |
| 3RT20271AK643MA0 | 120VAC | 32A | 2NO/2NC | Box |
| 3RT20271AT600UA0 | 600VAC | 32A | 1NO/1NC | Box |
| 3RT20271AV600UA0 | 480VAC | 50A | 1NO/1NC | Box |
The seed device (120VAC, bulk, 1NO/1NC) is the standard configuration for general-purpose motor feeder and main contactor applications where the panel builder needs a single auxiliary contact for status or interlock routing.